best rig for overdriven sound?

I can only spend up to $1000 at most, and I'd like to get a Jack Bruce/Colin Greenwood sort of sound... that is, Colin Greenwood's warmth with Jack Bruce's signature overdriven tone. I'm looking for something that'll work for small to medium venue sizes. I'm playing through a PRS with really hot pickups. I was looking at a used Ampeg SVT3-Pro, but I want to know what else is out there. (I don't mind using used equipment, so adjust the prices accordingly.

Greenwood uses an Alembic tube pre, a poweramp or a GK 800rb (as a poweramp) and ampeg 810/2x410 (at different times). Colin also runs compression most of the time via a DBX 160a.

My overall suggestion (because I like the tones you want) is my prospective rig: a SansAmp (bass driver DI, or preferrably the RBI rack one) and a poweramp combined with your favourate speakers. If you want overdriven, turn up drive (works well, I have a SABDDI) and if you just want warmth, turn down the drive just below the level of clipping.

that's the beauty of the interstellar overdrive. you can get whatever kind of grind you want at whatever volume you want. an IOD, a DCM1000, and a Big Bertha 2x15 is the way i'd go if i wanted in your face ballsy gritty rock tone. you would be SOOOO loud too, it'd be ridiculous.

edit: oops. the preamp is what changes your tone, the poweramp is what takes the power from the wall and puts it to the speakers.